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The Set of the Mind Matters: Perceived Energy, Focus, and the Placebo Effect

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2026-08-14

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Modica, Nicole Elizabeth. 2026. The Set of the Mind Matters: Perceived Energy, Focus, and the Placebo Effect. Masters Thesis, Harvard University Division of Continuing Education.

Abstract

This study investigated whether a brief mindset-reframing intervention could influence perceived energy and state focus. Drawing upon previous mindset-placebo research, the study tested if reframing the perception of daily work tasks would produce immediate shifts in self-reported energy and focus. An online experiment was conducted with 41 adults who worked in customer service roles that are in-person with face-to-face customer/client interactions. Participants were randomly assigned to either an intervention or control condition. In the intervention condition, customer service work tasks were framed as energizing and focus-enhancing, while the control condition presented neutral, customer service information. Pre- and post-intervention measures of subjective energy and state focus were completed by all participants. Results indicated a significant Time x Condition interaction for both outcomes. Participants in the intervention group reported immediate increases in perceived energy and focus. Participants in the control group did not report comparable increases. These findings contribute preliminary evidence that the way a task is framed and subsequently perceived may shape felt experience, even when the task itself remains unchanged.

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Mindset, Perceived Energy, Perceived Focus, Placebo-effects, Psychology

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